A superb specimen of boleite crystals up to 6mm from the type locality Amelia Mine, Boleo District, Mexico. This piece is a prime example of a classic Mexican rarity. It features sharp, cubic crystals with a striking indigo-blue color, transitioning to royal-blue at the edges. They show penetration twinning. Complete all over floater. In excellent condition. With acrylic base – not glued.

Fine boleite!